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7th CBSE
IMPORTANT
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Which of the following gases turn(s) lime water milky?

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Important Questions on PREP TEST

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7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 6
Pooja took a candle in a vessel and heated the vessel. Even though the candle did not burn, it changed its shape and state. What kind of change is this?
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7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 7
When few drops of phenolphthalein are added to a solution of common salt, the solution
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7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 10
Identify the physical change that cannot be reversed.
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7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 11
Which of the following set of substances contain acids?
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7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 13
Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed?
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7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 15
Identify the incorrect statements.
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7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 16
Galvanisation is a process in which
MEDIUM
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 3 - PREP TEST>SECTION - A>Q 17
Aqueous solution of sodium hydroxide turns